Archaeologist excavating mosaic next to foundation piles
Pile wall impacts on a Roman Mosaic, Gresham Street, London © MOLA
Pile wall impacts on a Roman Mosaic, Gresham Street, London © MOLA

Preservation in situ

Preservation in situ is the term used to refer to the conservation of an archaeological asset in its original location. It can describe situations when a site is preserved as part of a development scheme, but also refers to the long-term management of wetland archaeological sites.

Critical to the success of any preservation in situ scheme is that the below-ground environment is understood fully, particularly before construction or land-use change begins. Where development does take place over archaeological sites every effort should be made to minimise the harm to the significance of the site. This is explained in more detail in the guidance below.

 

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